Climate of Jeju, Jeju, South Korea
Point-value climate at Jeju (Jeju, Korea, Republic of). Population approximately 408,364.
Located in Jeju, Korea, Republic of, Jeju has a seasonal climate. Population approximately 408,364. Monthly average temperatures range from 5.2°C / 41.4°F in January to 26.6°C / 79.9°F in August, with rainfall varying from 52 mm / 2 in (December) to 279 mm / 11 in (July) — about 1743 mm / 68.6 in across the year. Jeju is the capital of Jeju. These are point-value climate normals sampled at Jeju's coordinates — often quite different from the surrounding region's area-weighted average.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 5.2°C41.4°F | 69 mm2.7″ | — |
| February | 5.9°C42.6°F | 79 mm3.1″ | — |
| March | 9°C48.2°F | 109 mm4.3″ | — |
| April | 13.7°C56.7°F | 150 mm5.9″ | — |
| May | 17.7°C63.9°F | 176 mm6.9″ | — |
| June | 21.4°C70.5°F | 250 mm9.8″ | — |
| July | 25.7°C78.3°F | 279 mm11″ | — |
| August | 26.6°C79.9°F | 254 mm10″ | — |
| September | 22.8°C73°F | 174 mm6.9″ | — |
| October | 17.9°C64.2°F | 75 mm3″ | — |
| November | 12.4°C54.3°F | 76 mm3″ | — |
| December | 7.5°C45.5°F | 52 mm2″ | — |
Frequently asked questions
What is the best time to visit Jeju?
Jeju does not have a clearly "sunny" season by our profile cutoffs — see the "warmest and driest months" fallback for the closest picks. Jeju's warmest month is August at an average of 26.6°C / 79.9°F, and its driest month is December with about 52 mm / 2 in of rain.
What is the climate of Jeju?
Jeju, in Jeju, Korea, Republic of, has monthly average temperatures ranging from 5.2°C / 41.4°F in January to 26.6°C / 79.9°F in August. Annual rainfall is approximately 1743 mm / 68.6 in, with the wettest month being July (279 mm / 11 in) and the driest December (52 mm / 2 in).
What is the average temperature in Jeju in August?
The average temperature in Jeju in August is 26.6°C / 79.9°F, with rainfall of about 254 mm / 10 in — the warmest month of the year.
When is the driest month in Jeju?
The driest month in Jeju is December, with about 52 mm / 2 in of average monthly rainfall. Average temperature that month is 7.5°C / 45.5°F.
When is the wettest month in Jeju?
The wettest month in Jeju is July, with approximately 279 mm / 11 in of average monthly rainfall.